#include<iostream>
#include<vector>
using namespace std;

void printVector(vector<int> &v){
	for(vector<int>::iterator iter=v.begin();iter!=v.end();iter++){
		cout<<*iter<<" ";
	}
	cout<<endl;

}

int main(){
	
	vector<int> v1;
	cout<<"v1:";
	printVector(v1);



	vector<int> v2_1={9,8,7,6,5};
	cout<<"v2:_1:";
	printVector(v2_1);

	vector<int> v2_2={9,8,7,6,4};
	cout<<"v2_2:";
	printVector(v2_2);

	vector<int> v3(v2_1.begin(),v2_1.end());
	cout<<"v3:";
	printVector(v3);

	vector<int> v4(8);
	cout<<"v4:";
	printVector(v4);

	vector<int> v5(8,6);
	cout<<"v5:";
	printVector(v5);

	vector<int> v6(v2_2);
	cout<<"v6:";
	printVector(v6);


	return 0;
}
